in kinematics .................
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1
Answer:
21.75 m is the answer
Explanation:
reaction time is the time gap between observation and execution of any process. during the reaction time body will move with previous condition.
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Answer:
Explanation:
distance travelled during application of brakes = vt=0.2*15=3
after he applies brakes there will some retardation and object comes to rest
apply third equation
v^2-u^2=2as
final velocity becomes zero after applying brakes
v^2-u^2=2as
-u^2=-2as
-a indicates retardation
u^2=2as
s=u^2/2a
s=225/12
s=18.75
total distance = 21.75m
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